with only the possible addition of a prosthetic nose alongside the beard to disguise his distinctive features.

He also has prosthetics on his forehead/eyebrows, that are very much in line with the amount of prosthetics worn by the rest of the company. Only the jumbo sized Bombur and the bizarre Nori are obviously wearing more, with Gloin wearing slightly more to make him resemble Gimli. IMHO, all of the dwarves are perfectly acceptable with (again) the exceptions of Fili and Kili, who more closely resemble a man, and an elf.